I have a 94 sts with exhaust, intake, and a 93 mark Viii with the same mods, and we race them all the time, They both get 2 gear bark, both fill about the same in power but when we line them up the sts always wins, 0-60 the sts wins by a car, 0-90 the sts wins 1 1/2 cars. 80- 130 sts wins by 1/2...